My bunkhouse has 3 bunks, 2 are larger than the single beds. On the left, above the entertainment center, is what I call a double, it's not as large as a fill size but it's about twice the size of the camper single beds. On the right, the upper bunk is a single, the lower bunk is a "double" and there's a trundle bed that pulls out from under the bottom bunk. All 6 of my kids sleep back there, they sleep 2 people in the "double" beds and one per single bed. (I don't make them do that, they choose to, just for the record lol)